/* Copyright 2009 Requirement Management System
 * 
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.mags.object.common;

import java.util.Formatter;
import java.util.Locale;

/**
 * 
 * @author Mario Gaitan
 *
 */
public class StringParserFormatter {
	private FormattersCache cache = new FormattersCache();
	public StringParserFormatter() {}
	private synchronized Formatter loadFormatter(String pattern, Locale locale) {
		Formatter formatter = (Formatter)cache.get(pattern, locale);
		if(formatter==null) {
			formatter = new Formatter(new StringBuilder(), locale);
			cache.put(pattern, locale, formatter);
		}
		return formatter;
	}
	private Formatter getFormatter(String pattern, Locale locale) {
		Formatter formatter = (Formatter)cache.get(pattern, locale);
		if(formatter==null) 
			formatter = loadFormatter(pattern, locale);
		return formatter;
	}		
	public String toText(String text, Locale locale, Object ...args) {
		return text==null?null:getFormatter("", locale).format(text, args).toString();
	}
}
